21328549996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{58991}}^1$

素因数の和:59434

約数の個数: 48

約数和(自身を含む): 42665374080

約数和(自身を除く): 21336824084

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 409, 442, 818, 884, 1636, 5317, 6953, 10634, 13906, 21268, 27812, 58991, 90389, 117982, 180778, 235964, 361556, 766883, 1002847, 1533766, 2005694, 3067532, 4011388, 13037011, 24127319, 26074022, 48254638, 52148044, 96509276, 313655147, 410164423, 627310294, 820328846, 1254620588, 1640657692, 5332137499, 10664274998, 21328549996]

約数ペア:

[(1, 21328549996), (2, 10664274998), (4, 5332137499), (13, 1640657692), (17, 1254620588), (26, 820328846), (34, 627310294), (52, 410164423), (68, 313655147), (221, 96509276), (409, 52148044), (442, 48254638), (818, 26074022), (884, 24127319), (1636, 13037011), (5317, 4011388), (6953, 3067532), (10634, 2005694), (13906, 1533766), (21268, 1002847), (27812, 766883), (58991, 361556), (90389, 235964), (117982, 180778)]