21626940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 64995840

約数和(自身を除く): 43368900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 305, 311, 366, 380, 570, 610, 622, 732, 915, 933, 1140, 1159, 1220, 1244, 1555, 1830, 1866, 2318, 3110, 3477, 3660, 3732, 4636, 4665, 5795, 5909, 6220, 6954, 9330, 11590, 11818, 13908, 17385, 17727, 18660, 18971, 23180, 23636, 29545, 34770, 35454, 37942, 56913, 59090, 69540, 70908, 75884, 88635, 94855, 113826, 118180, 177270, 189710, 227652, 284565, 354540, 360449, 379420, 569130, 720898, 1081347, 1138260, 1441796, 1802245, 2162694, 3604490, 4325388, 5406735, 7208980, 10813470, 21626940]

約数ペア:

[(1, 21626940), (2, 10813470), (3, 7208980), (4, 5406735), (5, 4325388), (6, 3604490), (10, 2162694), (12, 1802245), (15, 1441796), (19, 1138260), (20, 1081347), (30, 720898), (38, 569130), (57, 379420), (60, 360449), (61, 354540), (76, 284565), (95, 227652), (114, 189710), (122, 177270), (183, 118180), (190, 113826), (228, 94855), (244, 88635), (285, 75884), (305, 70908), (311, 69540), (366, 59090), (380, 56913), (570, 37942), (610, 35454), (622, 34770), (732, 29545), (915, 23636), (933, 23180), (1140, 18971), (1159, 18660), (1220, 17727), (1244, 17385), (1555, 13908), (1830, 11818), (1866, 11590), (2318, 9330), (3110, 6954), (3477, 6220), (3660, 5909), (3732, 5795), (4636, 4665)]