21153100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:595

約数の個数: 72

約数和(自身を含む): 50809248

約数和(自身を除く): 29656148

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 92, 100, 115, 170, 230, 340, 391, 425, 460, 541, 575, 782, 850, 1082, 1150, 1564, 1700, 1955, 2164, 2300, 2705, 3910, 5410, 7820, 9197, 9775, 10820, 12443, 13525, 18394, 19550, 24886, 27050, 36788, 39100, 45985, 49772, 54100, 62215, 91970, 124430, 183940, 211531, 229925, 248860, 311075, 423062, 459850, 622150, 846124, 919700, 1057655, 1244300, 2115310, 4230620, 5288275, 10576550, 21153100]

約数ペア:

[(1, 21153100), (2, 10576550), (4, 5288275), (5, 4230620), (10, 2115310), (17, 1244300), (20, 1057655), (23, 919700), (25, 846124), (34, 622150), (46, 459850), (50, 423062), (68, 311075), (85, 248860), (92, 229925), (100, 211531), (115, 183940), (170, 124430), (230, 91970), (340, 62215), (391, 54100), (425, 49772), (460, 45985), (541, 39100), (575, 36788), (782, 27050), (850, 24886), (1082, 19550), (1150, 18394), (1564, 13525), (1700, 12443), (1955, 10820), (2164, 9775), (2300, 9197), (2705, 7820), (3910, 5410)]