21999150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 64995840

約数和(自身を除く): 42996690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 31, 38, 45, 50, 57, 62, 75, 83, 90, 93, 95, 114, 150, 155, 166, 171, 186, 190, 225, 249, 279, 285, 310, 342, 415, 450, 465, 475, 498, 558, 570, 589, 747, 775, 830, 855, 930, 950, 1178, 1245, 1395, 1425, 1494, 1550, 1577, 1710, 1767, 2075, 2325, 2490, 2573, 2790, 2850, 2945, 3154, 3534, 3735, 4150, 4275, 4650, 4731, 5146, 5301, 5890, 6225, 6975, 7470, 7719, 7885, 8550, 8835, 9462, 10602, 12450, 12865, 13950, 14193, 14725, 15438, 15770, 17670, 18675, 23157, 23655, 25730, 26505, 28386, 29450, 37350, 38595, 39425, 44175, 46314, 47310, 48887, 53010, 64325, 70965, 77190, 78850, 88350, 97774, 115785, 118275, 128650, 132525, 141930, 146661, 192975, 231570, 236550, 244435, 265050, 293322, 354825, 385950, 439983, 488870, 578925, 709650, 733305, 879966, 1157850, 1222175, 1466610, 2199915, 2444350, 3666525, 4399830, 7333050, 10999575, 21999150]

約数ペア:

[(1, 21999150), (2, 10999575), (3, 7333050), (5, 4399830), (6, 3666525), (9, 2444350), (10, 2199915), (15, 1466610), (18, 1222175), (19, 1157850), (25, 879966), (30, 733305), (31, 709650), (38, 578925), (45, 488870), (50, 439983), (57, 385950), (62, 354825), (75, 293322), (83, 265050), (90, 244435), (93, 236550), (95, 231570), (114, 192975), (150, 146661), (155, 141930), (166, 132525), (171, 128650), (186, 118275), (190, 115785), (225, 97774), (249, 88350), (279, 78850), (285, 77190), (310, 70965), (342, 64325), (415, 53010), (450, 48887), (465, 47310), (475, 46314), (498, 44175), (558, 39425), (570, 38595), (589, 37350), (747, 29450), (775, 28386), (830, 26505), (855, 25730), (930, 23655), (950, 23157), (1178, 18675), (1245, 17670), (1395, 15770), (1425, 15438), (1494, 14725), (1550, 14193), (1577, 13950), (1710, 12865), (1767, 12450), (2075, 10602), (2325, 9462), (2490, 8835), (2573, 8550), (2790, 7885), (2850, 7719), (2945, 7470), (3154, 6975), (3534, 6225), (3735, 5890), (4150, 5301), (4275, 5146), (4650, 4731)]