21232380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 64802304

約数和(自身を除く): 43569924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 163, 167, 195, 260, 326, 334, 390, 489, 501, 652, 668, 780, 815, 835, 978, 1002, 1630, 1670, 1956, 2004, 2119, 2171, 2445, 2505, 3260, 3340, 4238, 4342, 4890, 5010, 6357, 6513, 8476, 8684, 9780, 10020, 10595, 10855, 12714, 13026, 21190, 21710, 25428, 26052, 27221, 31785, 32565, 42380, 43420, 54442, 63570, 65130, 81663, 108884, 127140, 130260, 136105, 163326, 272210, 326652, 353873, 408315, 544420, 707746, 816630, 1061619, 1415492, 1633260, 1769365, 2123238, 3538730, 4246476, 5308095, 7077460, 10616190, 21232380]

約数ペア:

[(1, 21232380), (2, 10616190), (3, 7077460), (4, 5308095), (5, 4246476), (6, 3538730), (10, 2123238), (12, 1769365), (13, 1633260), (15, 1415492), (20, 1061619), (26, 816630), (30, 707746), (39, 544420), (52, 408315), (60, 353873), (65, 326652), (78, 272210), (130, 163326), (156, 136105), (163, 130260), (167, 127140), (195, 108884), (260, 81663), (326, 65130), (334, 63570), (390, 54442), (489, 43420), (501, 42380), (652, 32565), (668, 31785), (780, 27221), (815, 26052), (835, 25428), (978, 21710), (1002, 21190), (1630, 13026), (1670, 12714), (1956, 10855), (2004, 10595), (2119, 10020), (2171, 9780), (2445, 8684), (2505, 8476), (3260, 6513), (3340, 6357), (4238, 5010), (4342, 4890)]