21478350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 72

約数和(自身を含む): 55409400

約数和(自身を除く): 33931050

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 149, 150, 155, 186, 298, 310, 447, 465, 745, 775, 894, 930, 961, 1490, 1550, 1922, 2235, 2325, 2883, 3725, 4470, 4619, 4650, 4805, 5766, 7450, 9238, 9610, 11175, 13857, 14415, 22350, 23095, 24025, 27714, 28830, 46190, 48050, 69285, 72075, 115475, 138570, 143189, 144150, 230950, 286378, 346425, 429567, 692850, 715945, 859134, 1431890, 2147835, 3579725, 4295670, 7159450, 10739175, 21478350]

約数ペア:

[(1, 21478350), (2, 10739175), (3, 7159450), (5, 4295670), (6, 3579725), (10, 2147835), (15, 1431890), (25, 859134), (30, 715945), (31, 692850), (50, 429567), (62, 346425), (75, 286378), (93, 230950), (149, 144150), (150, 143189), (155, 138570), (186, 115475), (298, 72075), (310, 69285), (447, 48050), (465, 46190), (745, 28830), (775, 27714), (894, 24025), (930, 23095), (961, 22350), (1490, 14415), (1550, 13857), (1922, 11175), (2235, 9610), (2325, 9238), (2883, 7450), (3725, 5766), (4470, 4805), (4619, 4650)]