21130128

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7723}}^1$

素因数の和:7756

約数の個数: 60

約数和(自身を含む): 62255440

約数和(自身を除く): 41125312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7723, 15446, 23169, 30892, 46338, 61784, 69507, 92676, 123568, 139014, 146737, 185352, 278028, 293474, 370704, 440211, 556056, 586948, 880422, 1112112, 1173896, 1320633, 1760844, 2347792, 2641266, 3521688, 5282532, 7043376, 10565064, 21130128]

約数ペア:

[(1, 21130128), (2, 10565064), (3, 7043376), (4, 5282532), (6, 3521688), (8, 2641266), (9, 2347792), (12, 1760844), (16, 1320633), (18, 1173896), (19, 1112112), (24, 880422), (36, 586948), (38, 556056), (48, 440211), (57, 370704), (72, 293474), (76, 278028), (114, 185352), (144, 146737), (152, 139014), (171, 123568), (228, 92676), (304, 69507), (342, 61784), (456, 46338), (684, 30892), (912, 23169), (1368, 15446), (2736, 7723)]