21384780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8693}}^1$

素因数の和:8746

約数の個数: 48

約数和(自身を含む): 61344864

約数和(自身を除く): 39960084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8693, 17386, 26079, 34772, 43465, 52158, 86930, 104316, 130395, 173860, 260790, 356413, 521580, 712826, 1069239, 1425652, 1782065, 2138478, 3564130, 4276956, 5346195, 7128260, 10692390, 21384780]

約数ペア:

[(1, 21384780), (2, 10692390), (3, 7128260), (4, 5346195), (5, 4276956), (6, 3564130), (10, 2138478), (12, 1782065), (15, 1425652), (20, 1069239), (30, 712826), (41, 521580), (60, 356413), (82, 260790), (123, 173860), (164, 130395), (205, 104316), (246, 86930), (410, 52158), (492, 43465), (615, 34772), (820, 26079), (1230, 17386), (2460, 8693)]