721525203

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{1723}}^1$

素因数の和:1793

約数の個数: 72

約数和(自身を含む): 1321052928

約数和(自身を除く): 599527725

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 289, 357, 391, 483, 867, 1071, 1173, 1449, 1723, 2023, 2601, 2737, 3519, 5169, 6069, 6647, 8211, 12061, 15507, 18207, 19941, 24633, 29291, 36183, 39629, 46529, 59823, 87873, 108549, 118887, 139587, 205037, 263619, 277403, 356661, 418761, 497947, 615111, 673693, 832209, 1493841, 1845333, 2021079, 2496627, 3485629, 4481523, 4715851, 6063237, 10456887, 11452781, 14147553, 31370661, 34358343, 42442659, 80169467, 103075029, 240508401, 721525203]

約数ペア:

[(1, 721525203), (3, 240508401), (7, 103075029), (9, 80169467), (17, 42442659), (21, 34358343), (23, 31370661), (51, 14147553), (63, 11452781), (69, 10456887), (119, 6063237), (153, 4715851), (161, 4481523), (207, 3485629), (289, 2496627), (357, 2021079), (391, 1845333), (483, 1493841), (867, 832209), (1071, 673693), (1173, 615111), (1449, 497947), (1723, 418761), (2023, 356661), (2601, 277403), (2737, 263619), (3519, 205037), (5169, 139587), (6069, 118887), (6647, 108549), (8211, 87873), (12061, 59823), (15507, 46529), (18207, 39629), (19941, 36183), (24633, 29291)]