21249106

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 34819200

約数和(自身を除く): 13570094

約数列:

[1, 2, 19, 38, 61, 89, 103, 122, 178, 206, 1159, 1691, 1957, 2318, 3382, 3914, 5429, 6283, 9167, 10858, 12566, 18334, 103151, 119377, 174173, 206302, 238754, 348346, 559187, 1118374, 10624553, 21249106]

約数ペア:

[(1, 21249106), (2, 10624553), (19, 1118374), (38, 559187), (61, 348346), (89, 238754), (103, 206302), (122, 174173), (178, 119377), (206, 103151), (1159, 18334), (1691, 12566), (1957, 10858), (2318, 9167), (3382, 6283), (3914, 5429)]