21084528

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 58428800

約数和(自身を除く): 37344272

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 61, 76, 114, 122, 152, 183, 228, 244, 304, 366, 379, 456, 488, 732, 758, 912, 976, 1137, 1159, 1464, 1516, 2274, 2318, 2928, 3032, 3477, 4548, 4636, 6064, 6954, 7201, 9096, 9272, 13908, 14402, 18192, 18544, 21603, 23119, 27816, 28804, 43206, 46238, 55632, 57608, 69357, 86412, 92476, 115216, 138714, 172824, 184952, 277428, 345648, 369904, 439261, 554856, 878522, 1109712, 1317783, 1757044, 2635566, 3514088, 5271132, 7028176, 10542264, 21084528]

約数ペア:

[(1, 21084528), (2, 10542264), (3, 7028176), (4, 5271132), (6, 3514088), (8, 2635566), (12, 1757044), (16, 1317783), (19, 1109712), (24, 878522), (38, 554856), (48, 439261), (57, 369904), (61, 345648), (76, 277428), (114, 184952), (122, 172824), (152, 138714), (183, 115216), (228, 92476), (244, 86412), (304, 69357), (366, 57608), (379, 55632), (456, 46238), (488, 43206), (732, 28804), (758, 27816), (912, 23119), (976, 21603), (1137, 18544), (1159, 18192), (1464, 14402), (1516, 13908), (2274, 9272), (2318, 9096), (2928, 7201), (3032, 6954), (3477, 6064), (4548, 4636)]