21390504

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 57288000

約数和(自身を除く): 35897496

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 61, 76, 114, 122, 152, 183, 228, 244, 366, 456, 488, 732, 769, 1159, 1464, 1538, 2307, 2318, 3076, 3477, 4614, 4636, 6152, 6954, 9228, 9272, 13908, 14611, 18456, 27816, 29222, 43833, 46909, 58444, 87666, 93818, 116888, 140727, 175332, 187636, 281454, 350664, 375272, 562908, 891271, 1125816, 1782542, 2673813, 3565084, 5347626, 7130168, 10695252, 21390504]

約数ペア:

[(1, 21390504), (2, 10695252), (3, 7130168), (4, 5347626), (6, 3565084), (8, 2673813), (12, 1782542), (19, 1125816), (24, 891271), (38, 562908), (57, 375272), (61, 350664), (76, 281454), (114, 187636), (122, 175332), (152, 140727), (183, 116888), (228, 93818), (244, 87666), (366, 58444), (456, 46909), (488, 43833), (732, 29222), (769, 27816), (1159, 18456), (1464, 14611), (1538, 13908), (2307, 9272), (2318, 9228), (3076, 6954), (3477, 6152), (4614, 4636)]